Service column



FIG. 1 is a perspective view of service column showing our new design;

FIG. 2 is a front elevational view thereof; the rear elevational viewbeing a mirror image thereof;

FIG. 3 is a right side elevational view thereof; the left sideelevational view being a mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The ornamental design for a service column, as shown and described.